Amsterdam: World's Oldest Diamond Factory Tour
Overview
Available languages
30 minutes
Mobile ticket
Just around the corner from the Rijksmuseum, step inside the oldest still operating diamond polishing factory in the world and experience 185 years of craftsmanship at Royal Coster Diamonds.
During this 30 minute guided tour, you will discover how rough diamonds are transformed into sparkling masterpieces, watch real diamond polishers and goldsmith at work.
Learn about the 4 C's of diamond valuation Cut, Color, Clarity, and Carat and how each factor determines a stone's quality and value.
Along the way, you will uncover the stories behind some of the world’s most famous diamonds, admire the replica of the legendary Koh i Noor, the Cullinan replica the largest gem-quality rough diamond ever found and discover the Royal 201, known as the most brilliant diamond in the world.
Experience the atmosphere of a factory where craftsmanship has been passed down since 1840 and enjoy one of Amsterdam’s most unique cultural experiences on Museumplein.
Additional Info
Public transportation options are available nearby
Infants are required to sit on an adult’s lap
Suitable for all physical fitness levels
May be operated by a multi-lingual guide
Guaranteed in English, other language upon availability
No elevator, only stairs
What To Expect
Start your visit in the heart of Amsterdam for a guided tour. Explore the magical world of diamonds in your own language. Watch the craftsmen and women cut and polish rough stones into beautiful diamonds. They create diamonds in all shapes and sizes that will last for centuries to come. Your experienced guides will tell you about the 4 C's of diamond valuation, the origin of diamonds and much more. All while you gaze upon some of the world's most spectacular diamond artifacts. This amazing tour includes a guide who speaks over 30 languages), the chance to see amazing diamond artifacts such as the Koh-I-Noor and watch the craftsmen and woman polish rough stones into amazing diamonds plus free entrance to the Diamond Museum Amsterdam and a special VIP-gift.
Options
Diamond Tour
Explore the magical world of diamonds in your own language during a guided tour, offered at various times!
What‘s Included
Professional guide
All taxes, fees and handling charges
VIP Gift
Food and drinks
Hotel pickup and drop-off
Transportation to/from attractions
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
38 reviews
Total reviews and rating from Viator & Tripadvisor
Fabulous
Emilie M,Apr 12, 2026
- Review from Tripadvisor
5.00Fabulous experience! Fabian taught us a lot about diamonds and how cutters shape them. We were able to examine and try some beautiful ones. We were spoiled!!
So enjoyable and educational
Alibaba1,Oct 3, 2025
- Review from Tripadvisor
5.00Angela was so knowledgeable and made the whole experience memorable, we loved it. My friend even bought a diamond ring for her daughter
Tour diamonds super experience
monicagJ7633JU,Jul 27, 2025
- Review from Tripadvisor
5.00We did the tour with Simone Pilla; very interesting experience with exceptionally helpful and competent guide. We will also suggest your “boutique” to friends for purchases.
Recomend
bogosr2025,Jul 19, 2025
- Review from Tripadvisor
5.00Verry good to visit. Don’t regret it. Recomend to visit. Royal coaster diamond is the best museum from Amsterdam. Good time
Brilliant and recommended!
D5198AXangelikak,Jul 16, 2025
- Review from Tripadvisor
5.00The tour at Royal Coster was very interesting, we learned a lot of new and interesting things about the art of working diamonds and their valuation. The visit and the competent and charming care of Mr Hans will always be remembered as a highlight of our Amsterdam trip.
A guided tour in French: great!!!
annemariesQ3292TM,Jun 17, 2025
- Review from Tripadvisor
5.00Very nice guided tour of a pleasant French intern in the person of Cassandre who knew how to inform us about the diamond technique and the characteristics of Coster jewelry. A great time.
Very interesting visit
L2619ODsandrinet,May 16, 2025
- Review from Tripadvisor
5.00Fantastic opportunity to admire beautiful diamonds. Very interesting presentation by our very friendly guide. A visit we will advise. Careful with the small gift bag.
Super recommended visit to the world of diamond
E1989HZilariaa,Apr 30, 2025
- Review from Tripadvisor
5.00Unforgettable experience and strongly recommended to deepen the diamond industry. I thank Simone Pilla for the professionalism, courtesy and sympathy dedicated to us during the view.
Best way to understand how works diamond industry
G5518OVlucal,Apr 23, 2025
- Review from Tripadvisor
5.00Amazing experience thanks to Simone's professionalism and competence, who guided us in the magic world of diamond. Highly recommended!
Diamonds are forever.
andrewsG608JY,Mar 20, 2025
- Review from Tripadvisor
5.00Fascinating tour. We learnt so much about Diamonds. The English royal crown was a bonus. Bella our guide was lovely. Recommend a visit.
Related Experiences
Operated by Royal Coster Diamonds